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Finding the Fourth Proportional to 124,596.56, 171,924.66 and 70,140.87

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Solution

The fourth proportional to 124,596.56, 171,924.66 and 70,140.87 is: 96,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,596.56 : 171,924.66 = 70,140.87 : x
  2. Step 2: Convert to fraction form
    124,596.56/171,924.66 = 70,140.87/x
  3. Step 3: Cross multiply
    124,596.56x = 171,924.66 × 70,140.87
  4. Step 4: Simplify right side
    124,596.56x = 12,058,945,226.85
  5. Step 5: Solve for x
    x = 12,058,945,226.85/124,596.56
  6. Step 6: Final answer
    x = 96,783.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.